Universidad de Castilla-La Mancha, Dpto. de Química Inorgánica, Orgánica y Bioquímica, Facultad de Ciencias y Tecnologías Químicas, 13071-Ciudad Real, Spain.
Dalton Trans. 2019 Mar 26;48(13):4218-4227. doi: 10.1039/c9dt00323a.
Helical aluminium complexes [Al2X4(μ-nbptam)] (X = Me 1, Et 2), [Al2X4(μ-fbpam)] (R = Me 3, Et 4), [Al3X7(μ-nbptam)] (X = Me 5, Et 6) and [Al3X7(μ-fbpam)] (X = Me 7, Et 8) have been prepared by treatment of scorpionate ligand precursors with two or three equivalents of the corresponding trialkylaluminium derivative. The structures of these complexes have been determined by spectroscopic methods and the X-ray crystal structure of complex 1 has also been established. These complexes have been studied as catalysts for the chemical fixation of carbon dioxide into cyclic carbonates displaying good catalytic activity. When cyclohexene oxide was used as a substrate, polyether-polycarbonate was obtained in a ratio which is highly dependent on the cocatalyst and the catalyst to cocatalyst ratio used.
螺旋铝配合物[Al2X4(μ-nbptam)]（X = Me1，Et2）、[Al2X4(μ-fbpam)]（R = Me3，Et4）、[Al3X7(μ-nbptam)]（X = Me5，Et6）和[Al3X7(μ-fbpam)]（X = Me7，Et8）通过用等摩尔量的相应三烷基铝衍生物处理螺环配体前体制备得到。这些配合物的结构通过光谱方法确定，并且还建立了复合物 1 的 X 射线晶体结构。这些配合物被研究作为将二氧化碳化学固定成环状碳酸酯的催化剂，显示出良好的催化活性。当环氧化环己烯用作底物时，聚醚-聚碳酸酯以高度依赖于共催化剂和所用催化剂与共催化剂比的比例获得。
